﻿#pragma execution_character_set("utf-8")

#include "videobox.h"
#include "qmenu.h"
#include "qaction.h"
#include "qgridlayout.h"
#include "qdebug.h"

namespace GeneralUI {

	VideoBox::VideoBox(QObject *parent) : QObject(parent)
	{
		maxCount = 64;
		layoutType = "1_16";
		gridLayout = NULL;

		menuFlag = "画面";
		actionFlag = "通道";

		//通过这里设置好数据下面只需要循环添加和判断就行(灵活性大大增强/只需要这里改动下就行)

		//自定义x布局/按照行列数生成/可以通过appendtype函数添加其他类型
		//1_2x4表示通道1开始2x4行列布局画面(相当于通道1-8按照2行4列排列)
		//9_2x4表示通道9开始2x4行列布局画面(相当于通道9-16按照2行4列排列)
		types.insert("x", QStringList() << "1_1x1" << "1_4x1" << "1_2x4" << "9_2x4" << "1_3x2" << "1_4x2" << "1_5x2" << "1_6x2" << "1_7x2" << "1_8x2");

		//自定义y布局/主要是一些用户定义的不规则的排列布局/加个y用于区分其他布局/可能有雷同
		types.insert("y", QStringList() << "y_1_2" << "y_1_3" << "y_1_5" << "y_1_8" << "y_1_9" << "y_1_10" << "y_1_12" << "y_1_16");

		//1_4表示通道1-通道4/前面是通道开始的索引/后面是通道结束的索引
		types.insert("4", QStringList() << "1_4" << "5_8" << "9_12" << "13_16" << "17_20" << "21_24" << "25_28" << "29_32" << "33_36");
		types.insert("6", QStringList() << "1_6" << "7_12" << "13_18" << "19_24" << "25_30" << "31_36");
		types.insert("8", QStringList() << "1_8" << "9_16" << "17_24" << "25_32" << "33_40" << "41_48" << "49_57" << "57_64");
		types.insert("9", QStringList() << "1_9" << "9_17" << "18_26" << "27_35" << "36_42" << "43_50" << "51_59");
		types.insert("13", QStringList() << "1_13" << "14_26" << "27_39" << "40_52" << "52_64");
		types.insert("16", QStringList() << "1_16" << "17_32" << "33_48" << "49_64");
		types.insert("25", QStringList() << "1_25");
		types.insert("36", QStringList() << "1_36");
		types.insert("64", QStringList() << "1_64");

		//默认全部可见
		int count = types.count();
		for (int i = 0; i < count; ++i) {
			visibles << true;
		}
	}

	void VideoBox::addMenu(QMenu *menu, const QString &type)
	{
		//父菜单文字
		QString name = QString("切换到%1%2").arg(type).arg(menuFlag);
		//链表中取出该布局大类下的小类集合
		QStringList flags = types.value(type);

		//超过一个子元素则添加子菜单
		QMenu *menuSub;
		if (flags.count() > 1) {
			menuSub = menu->addMenu(name);
		}
		else {
			menuSub = menu;
		}

		foreach(QString flag, flags) {
			QString text;
			QStringList list = flag.split("_");
			QString start = list.at(0);
			QString end = list.at(1);
			start = QString("%1").arg(start, 2, QChar('0'));

			//对应菜单文本
			if (type == "x") {
				list = end.split("x");
				text = QString("%1 x %2").arg(list.at(0)).arg(list.at(1));
				text = QString("%1%2 (%3)").arg(actionFlag).arg(start).arg(text);
			}
			else if (type == "y") {
				start = list.at(1);
				end = list.at(2);
				start = QString("%1").arg(start, 2, QChar('0'));
				end = QString("%1").arg(end, 2, QChar('0'));
				text = QString("%1%2-%1%3").arg(actionFlag).arg(start).arg(end);
			}
			else {
				end = QString("%1").arg(end, 2, QChar('0'));
				text = QString("%1%2-%1%3").arg(actionFlag).arg(start).arg(end);
			}

			//只有一个节点则子菜单文字=主菜单文字
			if (flags.count() == 1) {
				text = name;
			}

			//添加菜单动作
			QAction *action = menuSub->addAction(text, this, SLOT(change_layout()));
			//设置弱属性传入大类和子类布局标识等
			action->setProperty("index", start);
			action->setProperty("type", type);
			action->setProperty("flag", flag);
		}
	}

	//行列数一致的比如 2*2 3*3 4*4 5*5 等可以直接套用通用的公式
	//按照这个函数还可以非常容易的拓展出 10*10 16*16=256 通道界面
	void VideoBox::change_layout_normal(int index, int row, int column)
	{
		int size = 0;
		int rowCount = 0;
		int columnCount = 0;

		//首先隐藏所有通道
		hide_all();

		//按照指定的行列数逐个添加
		for (int i = 0; i < maxCount; ++i) {
			if (i >= index) {
				//添加到对应布局并设置可见
				gridLayout->addWidget(widgets.at(i), rowCount, columnCount);
				widgets.at(i)->setVisible(true);

				size++;
				columnCount++;
				if (columnCount == column) {
					rowCount++;
					columnCount = 0;
				}
			}

			//到了规定的数量则不用继续
			if (size == (row * column)) {
				break;
			}
		}
	}

	void VideoBox::change_layout_custom(int index, int type)
	{
		//从开始索引开始往后衍生多少个通道
		QList<int> indexs;
		for (int i = index; i < (index + type); ++i) {
			indexs << i;
		}

		//过滤防止索引越界
		if (indexs.count() < type) {
			return;
		}

		if (type == 6 || type == 8 || type == 10 || type == 12 || type == 16) {
			change_layout_l(indexs);
		}
		else if (type == 13) {
			change_layout_o(indexs);
		}
	}

	void VideoBox::change_layout_visible(int start, int end)
	{
		//设置通道控件可见
		for (int i = start; i <= end; ++i) {
			widgets.at(i)->setVisible(true);
		}
	}

	void VideoBox::change_layout_l(const QList<int> &indexs)
	{
		//通过观察发现这种都是左上角一个大通道/右侧和底部排列几个小通道
		int count = indexs.count();
		int num = count / 2;
		int flag = num - 1;

		//首先隐藏所有通道
		hide_all();

		//添加大通道
		gridLayout->addWidget(widgets.at(indexs.at(0)), 0, 0, flag, flag);
		//添加右侧小通道
		for (int i = 0; i < flag; ++i) {
			gridLayout->addWidget(widgets.at(indexs.at(i + 1)), i, flag);
		}
		//添加底部小通道
		for (int i = num; i < count; ++i) {
			gridLayout->addWidget(widgets.at(indexs.at(i)), flag, count - i - 1);
		}

		//下面添加6通道/这里留着挨个添加的写法/方便学习和对比
#if 0
		gridLayout->addWidget(widgets.at(indexs.at(0)), 0, 0, 2, 2);
		gridLayout->addWidget(widgets.at(indexs.at(1)), 0, 2, 1, 1);
		gridLayout->addWidget(widgets.at(indexs.at(2)), 1, 2, 1, 1);
		gridLayout->addWidget(widgets.at(indexs.at(3)), 2, 2, 1, 1);
		gridLayout->addWidget(widgets.at(indexs.at(4)), 2, 1, 1, 1);
		gridLayout->addWidget(widgets.at(indexs.at(5)), 2, 0, 1, 1);
#endif

		//设置通道控件可见
		change_layout_visible(indexs.first(), indexs.last());
	}

	void VideoBox::change_layout_o(const QList<int> &indexs)
	{
		//首先隐藏所有通道
		hide_all();
		//挨个重新添加到布局
		gridLayout->addWidget(widgets.at(indexs.at(0)), 0, 0, 1, 1);
		gridLayout->addWidget(widgets.at(indexs.at(1)), 0, 1, 1, 1);
		gridLayout->addWidget(widgets.at(indexs.at(2)), 0, 2, 1, 1);
		gridLayout->addWidget(widgets.at(indexs.at(3)), 0, 3, 1, 1);
		gridLayout->addWidget(widgets.at(indexs.at(4)), 1, 0, 1, 1);
		gridLayout->addWidget(widgets.at(indexs.at(5)), 2, 0, 1, 1);
		gridLayout->addWidget(widgets.at(indexs.at(6)), 1, 1, 2, 2);
		gridLayout->addWidget(widgets.at(indexs.at(7)), 1, 3, 1, 1);
		gridLayout->addWidget(widgets.at(indexs.at(8)), 2, 3, 1, 1);
		gridLayout->addWidget(widgets.at(indexs.at(9)), 3, 0, 1, 1);
		gridLayout->addWidget(widgets.at(indexs.at(10)), 3, 1, 1, 1);
		gridLayout->addWidget(widgets.at(indexs.at(11)), 3, 2, 1, 1);
		gridLayout->addWidget(widgets.at(indexs.at(12)), 3, 3, 1, 1);
		//设置通道控件可见
		change_layout_visible(indexs.first(), indexs.last());
	}

	QString VideoBox::getLayoutType() const
	{
		return this->layoutType;
	}

	void VideoBox::setLayoutType(const QString &layoutType)
	{
		this->layoutType = layoutType;
	}

	QWidgetList VideoBox::getWidgets() const
	{
		return this->widgets;
	}

	void VideoBox::setWidgets(QWidgetList widgets)
	{
		this->widgets = widgets;
		this->maxCount = widgets.count();
	}

	void VideoBox::setLayout(QGridLayout *gridLayout)
	{
		this->gridLayout = gridLayout;
	}

	void VideoBox::setMenuFlag(const QString &menuFlag)
	{
		this->menuFlag = menuFlag;
	}

	void VideoBox::setActionFlag(const QString &actionFlag)
	{
		this->actionFlag = actionFlag;
	}

	void VideoBox::setVisibles(const QList<bool> &visibles)
	{
		this->visibles = visibles;
	}

	void VideoBox::appendType(int index, int row, int column)
	{
		//先要过滤下是否满足最大通道数量/start从1开始
		if (((index - 1) + (row * column)) > maxCount) {
			return;
		}

		//追加到x布局后面
		QString type = QString("%1_%2x%3").arg(index).arg(row).arg(column);
		QMap<QString, QStringList>::iterator iter = types.begin();
		while (iter != types.end()) {
			if (iter.key() == "x") {
				QStringList value = iter.value();
				if (!value.contains(type)) {
					value.append(type);
					types["x"] = value;
				}
				break;
			}
			iter++;
		}
	}

	void VideoBox::initMenu(QMenu *menu)
	{
		//约定依次是按照顺序控制启用状态
		int count = visibles.count();
		if (count > 0 && visibles.at(0)) {
			addMenu(menu, "x");
		}
		if (count > 1 && visibles.at(1)) {
			addMenu(menu, "y");
		}
		if (count > 2 && visibles.at(2)) {
			addMenu(menu, "4");
		}
		if (count > 3 && visibles.at(3)) {
			addMenu(menu, "6");
		}
		if (count > 4 && visibles.at(4)) {
			addMenu(menu, "8");
		}
		if (count > 5 && visibles.at(5)) {
			addMenu(menu, "9");
		}
		if (count > 6 && visibles.at(6)) {
			addMenu(menu, "13");
		}
		if (count > 7 && visibles.at(7)) {
			addMenu(menu, "16");
		}
		if (count > 8 && visibles.at(8)) {
			addMenu(menu, "25");
		}
		if (count > 9 && visibles.at(9)) {
			addMenu(menu, "36");
		}
		if (count > 10 && visibles.at(10)) {
			addMenu(menu, "64");
		}
	}

	void VideoBox::show_all()
	{
		//一般是从配置文件读取到了最后的通道画面类型进行设置
		int type = 1;
		int index = layoutType.split("_").first().toInt() - 1;
		//y开头的布局需要重置索引=0
		if (layoutType.startsWith("y")) {
			index = 0;
		}

		QMap<QString, QStringList>::iterator iter = types.begin();
		while (iter != types.end()) {
			QStringList flags = iter.value();
			if (flags.contains(layoutType)) {
				type = iter.key().toInt();
				change_layout(type, index);
				return;
			}
			iter++;
		}

		//如果运行到这里说明设置了不存在的布局/强制纠正
		layoutType = "1_4";
		this->show_all();
	}

	void VideoBox::hide_all()
	{
		for (int i = 0; i < maxCount; ++i) {
			gridLayout->removeWidget(widgets.at(i));
			widgets.at(i)->setVisible(false);
		}
	}

	void VideoBox::change_layout()
	{
		//识别具体是哪个动作菜单触发的
		QAction *action = (QAction *)sender();
		//从弱属性取出值
		int index = action->property("index").toInt() - 1;
		int type = action->property("type").toInt();
		QString layoutType = action->property("flag").toString();
		//只有当画面布局类型改变了才需要切换
		if (this->layoutType != layoutType) {
			this->layoutType = layoutType;
			change_layout(type, index);
		}
	}

	void VideoBox::change_layout(int type, int index)
	{
		//根据不同的父菜单类型执行对应的函数
		if (type == 0) {
			if (layoutType.contains("x")) {
				//取出行列
				QString text = layoutType.split("_").last();
				QStringList list = text.split("x");
				int row = list.at(0).toInt();
				int column = list.at(1).toInt();
				change_layout_normal(index, row, column);

				//只有1个通道需要更改类型/方便外面区分当前是1通道
				if (layoutType.endsWith("1x1")) {
					type = 1;
				}
			}
			else if (layoutType == "y_1_2") {
				change_layout_y_1_2(index);
			}
			else if (layoutType == "y_1_3") {
				change_layout_y_1_3(index);
			}
			else if (layoutType == "y_1_5") {
				change_layout_y_1_5(index);
			}
			else if (layoutType == "y_1_8") {
				change_layout_y_1_8(index);
			}
			else if (layoutType == "y_1_9") {
				change_layout_y_1_9(index);
			}
			else if (layoutType == "y_1_10") {
				change_layout_y_1_10(index);
			}
			else if (layoutType == "y_1_12") {
				change_layout_y_1_12(index);
			}
			else if (layoutType == "y_1_16") {
				change_layout_y_1_16(index);
			}
		}
		else if (type == 1) {
			change_layout_1(index);
		}
		else if (type == 4) {
			change_layout_4(index);
		}
		else if (type == 6) {
			change_layout_6(index);
		}
		else if (type == 8) {
			change_layout_8(index);
		}
		else if (type == 9) {
			change_layout_9(index);
		}
		else if (type == 13) {
			change_layout_13(index);
		}
		else if (type == 16) {
			change_layout_16(index);
		}
		else if (type == 25) {
			change_layout_25(index);
		}
		else if (type == 36) {
			change_layout_36(index);
		}
		else if (type == 64) {
			change_layout_64(index);
		}

		Q_EMIT changeLayout(type, layoutType, false);
	}

	void VideoBox::change_layout_y_1_2(int index)
	{
		change_layout_normal(index, 1, 2);
	}

	void VideoBox::change_layout_y_1_3(int index)
	{
		//首先隐藏所有通道
		hide_all();
		//添加通道到布局
		gridLayout->addWidget(widgets.at(index + 0), 0, 0, 1, 2);
		gridLayout->addWidget(widgets.at(index + 1), 1, 0, 1, 1);
		gridLayout->addWidget(widgets.at(index + 2), 1, 1, 1, 1);
		//设置通道控件可见
		change_layout_visible(index, index + 2);
	}

	void VideoBox::change_layout_y_1_5(int index)
	{
		//首先隐藏所有通道
		hide_all();
		//依次左上/左下/
		gridLayout->addWidget(widgets.at(index + 0), 0, 0, 1, 2);
		gridLayout->addWidget(widgets.at(index + 1), 1, 0, 2, 1);
		gridLayout->addWidget(widgets.at(index + 2), 1, 1, 1, 1);
		gridLayout->addWidget(widgets.at(index + 3), 2, 1, 1, 1);
		gridLayout->addWidget(widgets.at(index + 4), 0, 2, 3, 1);
		//设置通道控件可见
		change_layout_visible(index, index + 4);
	}

	void VideoBox::change_layout_y_1_8(int index)
	{
		//首先隐藏所有通道
		hide_all();
		//添加上面4个通道
		gridLayout->addWidget(widgets.at(index + 0), 0, 0, 1, 1);
		gridLayout->addWidget(widgets.at(index + 1), 0, 1, 1, 1);
		gridLayout->addWidget(widgets.at(index + 2), 0, 2, 1, 1);
		gridLayout->addWidget(widgets.at(index + 3), 0, 3, 1, 1);
		//添加中间全景通道
		gridLayout->addWidget(widgets.at(index + 8), 1, 0, 1, 4);
		//添加下面4个通道
		gridLayout->addWidget(widgets.at(index + 4), 2, 0, 1, 1);
		gridLayout->addWidget(widgets.at(index + 5), 2, 1, 1, 1);
		gridLayout->addWidget(widgets.at(index + 6), 2, 2, 1, 1);
		gridLayout->addWidget(widgets.at(index + 7), 2, 3, 1, 1);
		//设置通道控件可见
		change_layout_visible(index, index + 8);
	}

	void VideoBox::change_layout_y_1_9(int index)
	{
		//首先隐藏所有通道
		hide_all();
		//添加通道到布局
		gridLayout->addWidget(widgets.at(index + 0), 0, 0, 2, 2);
		gridLayout->addWidget(widgets.at(index + 1), 0, 2, 1, 1);
		gridLayout->addWidget(widgets.at(index + 2), 0, 3, 1, 1);
		gridLayout->addWidget(widgets.at(index + 3), 1, 2, 1, 1);
		gridLayout->addWidget(widgets.at(index + 4), 1, 3, 1, 1);
		gridLayout->addWidget(widgets.at(index + 5), 2, 3, 1, 1);
		gridLayout->addWidget(widgets.at(index + 6), 2, 2, 1, 1);
		gridLayout->addWidget(widgets.at(index + 7), 2, 1, 1, 1);
		gridLayout->addWidget(widgets.at(index + 8), 2, 0, 1, 1);
		//设置通道控件可见
		change_layout_visible(index, index + 8);
	}

	void VideoBox::change_layout_y_1_10(int index)
	{
		change_layout_custom(index, 10);
	}

	void VideoBox::change_layout_y_1_12(int index)
	{
		change_layout_custom(index, 12);
	}

	void VideoBox::change_layout_y_1_16(int index)
	{
		change_layout_custom(index, 16);
	}

	void VideoBox::change_layout_1(int index)
	{
		change_layout_normal(index, 1, 1);
	}

	void VideoBox::change_layout_4(int index)
	{
		change_layout_normal(index, 2, 2);
	}

	void VideoBox::change_layout_6(int index)
	{
		change_layout_custom(index, 6);
	}

	void VideoBox::change_layout_8(int index)
	{
		change_layout_custom(index, 8);
	}

	void VideoBox::change_layout_9(int index)
	{
		change_layout_normal(index, 3, 3);
	}

	void VideoBox::change_layout_13(int index)
	{
		change_layout_custom(index, 13);
	}

	void VideoBox::change_layout_16(int index)
	{
		change_layout_normal(index, 4, 4);
	}

	void VideoBox::change_layout_25(int index)
	{
		change_layout_normal(index, 5, 5);
	}

	void VideoBox::change_layout_36(int index)
	{
		change_layout_normal(index, 6, 6);
	}

	void VideoBox::change_layout_64(int index)
	{
		change_layout_normal(index, 8, 8);
	}

}